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प्रश्न
Classify the following as physical or chemical change :
Growth of a plant
पर्याय
Physical change
Chemical change
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उत्तर
Growth of plant – Chemical change
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संबंधित प्रश्न
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Write short answer.
Give two examples of periodic changes
Classify the following changes as physical or chemical: curdling of milk
State the various conditions that favour the process of evaporation.
True or false
In a physical change no net energy change is involved.
Ammonium chloride is also a sublimable solid. Give a reason why the sublimation of ammonium chloride involves a physical and a chemical change.
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
Sublimation of Iodine is a ______.
When solute is dissolved in a solvent it forms a solution.
Fill in the blanks in the following statements using the words given in the box.
| rusted, colourful, substance, chemical, physical, reversible, iron oxide, object |
- Making sugar solution is a ______ change.
- A physical change is generally ______.
- Grinding of wheat grain changes its size. It is a ______ change.
- Iron benches kept in lawns and gardens get ______. It is a ______ change because a new ______ is formed.
